- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F23J - Removal or treatment of combustion products or combustion residues; flues
- F23J 11/04 - Devices for conducting smoke or fumes, e.g. flues in ships
Patent holdings for IPC class F23J 11/04
Total number of patents in this class: 5
10-year publication summary
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0
|
1
|
1
|
1
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0
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0
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0
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0
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2
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0
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Caterpillar Inc. | 8877 |
2 |
| Rolls-Royce North American Technologies, Inc. | 1079 |
1 |
| Webasto SE | 1025 |
1 |
| Mackwell Pero & Co Limited | 2 |
1 |
| Other owners | 0 |